Network+ Networking Fundamentals Review

What is the primary function of the Data Link layer in the OSI model?

• Routing

• Data encapsulation

• Logical addressing

• Flow control

In which network topology are all devices connected to a central point?

• Bus

• Star

• Ring

• Mesh

Which cable type is commonly used in Ethernet networks and has four twisted pairs of copper wires?

• Fiber optic

• Coaxial

• UTP

• STP

What is the purpose of subnetting in IP networking?

• Enhancing security

• Simplifying routing

• Efficient utilization of IP addresses

• Reducing latency

Which of the following is a private IP address?

• 172.32.45.67

• 192.169.1.1

• 10.0.0.1

• 200.150.100.50

Which protocol is commonly used for email communication?

• SMTP

• FTP

• HTTP

• DNS

What is the primary function of a firewall in network security?

• Data encryption

• Access control

• Traffic analysis

• Load balancing

Which of the following is a well-known port for HTTP traffic?

• 21

• 80

• 443

• 53

In a ring network topology, how is data typically transmitted?

• Unidirectional

• Bidirectional

• Multidirectional

• Random

What is the purpose of using fiber optic cables in networking?

• Greater bandwidth

• Simplicity

• Cost-effectiveness

• Flexibility